Oil reclaiming apparatus



Feb. 24, 1942.

| EHLERS 2,274,132

OIL RECLAIMING APPARATUS Filed Dec. 18, 1939 2 Sheets-Sheet l A9 Inventor By @Mao/5;.-

A f iorneys Feb. 24, 1942. L. EHLERS y OIL REGLAIMING APPARATUS Filed nec. 18,1959 2 sheets-smet 2 A ttorneys Patented Feb. 24, 1942 uu 2,274,132v

UNITEDSTT PATENT. 'OFFICE j I 'i n ticularly for internaly lcombustion engines and has forits.. primary object .to provideyin amanner as hereinafter set` forth, .an4 apparatus vvhich,in` addition to filtering solid particles of foreign matter from the oil, includesfnovel means utilizing a portion of the hot exhaust gases from the engine for eliminating by vaporization for,- eign matter of a liquid nature that may be present in the oil.

. Another very important object of the invention is to provide an oil reclaiming apparatus of the aforementioned character comprising means for automatically controlling the temperature to which the oil is subjected.

Other objects of the invention are to provide an oil reclaiming apparatus of the character described Which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a vertical sectional view through an oil reclaiming apparatus constructed in` accordance with the present invention.`

Figure 2 is a View in horizontal section, taken substantially on the line 2 2 of Figure 1.

Figure 3 is a horizontal sectional View, taken substantially on the line 3-3 of Figure 1.

Figure 4 is a Vertical sectional view through the automatic temperature control means.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a casing I which may be of any suitable dimensions and material. The upper portion of the casing I is enlarged, as at 2, in a manner to provide a shoulder 3. Mounted on the casing I is a removable closure 4. The closure 4 is secured in position through the medium of an elongated bolt 5 having threaded thereon a nut 6. It will be ob'- served that the elongated bolt 5 extends centrally through the casing I from the bottom 1 of said casing.

The major portion of the casing I is lled with a loose, yielding filtering material 8, such as cottonV waste. Above the cotton waste 8 is a layer newand usethe casing I through the pipe I4.

Aplicatibrtnecember y18, 1939, serial No. 309,885`

" 11`c1a'im. .(o1.:21o-1H22. 5) u e n v I zofjfel-t Above the felt 9.l isa perforated plate I0 vwhich rests `on the shoulder 3.

The perforated" plate through the medium of a cover lplate II. The

1 plate II'is provided with a depending marginal skirt I2 which spaces said/plate from theperfo-A rated' plate IU. 'A nut`f`l3 onfthe bolt-5 secures the cover plate I'I. Aii'oil the oil pump of the engine is connected bottom 'I of the casing I.

The reference numeral I5 designates a vertically elongated vaporizing chamber on the casing I. It will be noted that the vaporizing chamber I5 is open at its top and that the closure 4 is formed to extend thereover. Extending downwardly in the chamber I5 from the upper portion thereof is a heating pipe I6 from the exhaust manifold of the engine. An exhaust pipe I1 is connected to the lower end of the heating pipe I6. Interposed in the pipe I1 is an exhaust gas control Valve which is designated generally by the reference numeral I 8.

Connected with the lower portion of the vaporizing chamber I5 is an oil return pipe I9 to the crank case of the engine. Interposed in the oil return pipe I9 is a heat responsive unit 20 which is operatively connected to the valve I8 by means including a link 2|. i

Above the chamber I5 the closure 4 is provided with a vent 22 which may be connected with the intake manifold of the engine. Also, the reference numeral 23 designates a vent in the lower portion of the chamber I5. If desired, the vent 23 may be connected with the usual breather pipe of the engine.

The cover plate II is provided with an outlet conduit 24 for receiving filtered oil from the casing I. A manually adjustable valve 25 is provided in the outlet conduit 24 for controlling the with the ratus will be readily apparent from a consideration of the foregoing. Briefly, oil from the oil pump of the engine enters the lower portion of This oil is elements 8 and 9 which remove the solid particles of foreign matter from said oil. The ltered oil passes through the perforated plate I Il and flows past the control valve 25 in the outlet 24 into the trough 26. The trough 26 deposits the oil on the upper portion of the vertical pipe I6 down which I0 is' retainedjin position delivery pipe I 4f fromchamber I5 through the pipe it flows in the chamber l5. Thus, the liquid impurities are removed from the oil by vaporization. The vapors are removed through the vents 22 and 23. The reclaimed oil then returns to the crank case of the engine from the vaporizing I9. As the hot oil passes through the unit 20 the element 28 in said unit responds to the temperature thereof and actuates the valve I8 for automatically controlling the flow of the exhaust gases through the heating pipe I6. In this manner the desired temperature to which the oil is subjected may be automatically maintained under various conditions.

It is believed that the many advantages of an oil reclaiming apparatus constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

An oil reclaiming apparatus comprising a casing having an oil delivery pipe connected with its lower portion, said casing including an enlarged upper portion providing a shoulder, a

vertically elongated vaporizing chamber on the casing, said chamber and said casing being open at their tops, a removable closure for the casing extending over the chamber, a vertical bolt in the casing securing the closure in position, a ltering agent in the casing below the shoulder, a perforated retaining plate for the iiltering agent mounted on the shoulder in the casing, a cover plate mounted on the bolt beneath the closure, said cover plate including a depending skirt engaged with the perforated plate to space the cover plate above the perforated plate, a, retaining nut for the cover plate threaded on the bolt, an oil outlet conduit on the cover plate communicating with the casing below said cover plate for receiving oil therefrom, a manually adjustable control valve in the outlet conduit, a vertical heating pipe in the vaporizing chamber having its upper end extending laterally outwardly of a side wall of the chamber and with its lower end extending through the bottom of the chamber, a trough on the cover plate for conducting the oil from the outlet conduit to the upper portion of the heating pipe and an oil return pipe connected to the bottom portion of the Vaporizing chamber.

LEMAN EHLER-S. 

